\begin{tikzpicture}
                \tikzset{arrowMe/.style={postaction=decorate,decoration={markings, mark=at position .5 with {\arrow[thick]{#1}}} }}
                      \def\r{1.7}
                      \tkzDefPoint(0,0){o}
                      \tkzDefPoint(0:\r){v1}\tkzDefPoint(60:\r){v2}\tkzDefPoint(120:\r){v3}\tkzDefPoint(180:\r){v4}\tkzDefPoint(240:\r){v5}\tkzDefPoint(300:\r){v6}
                      \draw[arrowMe=stealth](v1)--node[right]{\(a_2\)}(v2);
                      \draw[arrowMe=stealth](v2)--node[above=2pt]{\(a_2\)}(v3);
                      \draw[arrowMe=stealth](v3)--node[left]{\(a_3\)}(v4);
                      \draw[arrowMe=stealth](v4)--node[left]{\(a_3\)}(v5);
                      \draw[arrowMe=stealth](v5)--node[below]{\(a_1\)}(v6); 
                      \draw[arrowMe=stealth](v6)--node[right]{\(a_1\)}(v1);
                      \tkzDrawPoints(v1,v2,v3,v4,v5,v6)
                \begin{scope}[scale=2,xshift=2.5cm]
                \def\r{.7071}
                \tkzDefPoint(0,0){o}
                \tkzDefPoint(0,1){a}
                \tkzDefPoint(0:\r){vo}\tkzDefPoint(60:\r){v1}\tkzDefPoint(30:1.2247){z1}
                \tkzDefPoint(120:\r){v2}\tkzDefPoint(90:1.2247){z2}
                \tkzDefPoint(180:\r){v3}\tkzDefPoint(150:1.2247){z3}
                \tkzDefPoint(240:\r){v4}\tkzDefPoint(210:1.2247){z4}
                \tkzDefPoint(300:\r){v5}\tkzDefPoint(270:1.2247){z5}\tkzDefPoint(330:1.2247){z6}
                \tkzDrawCircle[dashed,color=blue](o,a)
                \tkzDrawArc(z1,v1)(vo)
                \tkzDrawArc(z2,v2)(v1)
                \tkzDrawArc(z3,v3)(v2)
                \tkzDrawArc(z4,v4)(v3)
                \tkzDrawArc(z5,v5)(v4)
                \tkzDrawArc(z6,vo)(v5)
                \tkzDrawPoints(vo,v1,v2,v3,v4,v5)
                \draw[arrowMe=stealth](30:.52)--node[above right=-3pt]{\(a_2\)}(30.1:.52);
                \draw[arrowMe=stealth](90:.52)--node[above]{\(a_2\)}(90.1:.52);
                \draw[arrowMe=stealth](150:.52)--node[above left=-3pt]{\(a_3\)}(150.1:.52);
                \draw[arrowMe=stealth](210:.52)--node[below left=-3pt]{\(a_3\)}(210.1:.52);
                \draw[arrowMe=stealth](270:.52)--node[below]{\(a_1\)}(270.1:.52);
                \draw[arrowMe=stealth](330:.52)--node[below right=-3pt]{\(a_1\)}(330.1:.52);
                \end{scope}
\end{tikzpicture}