\begin{tikzpicture}[node distance=10mm]

  \tikzstyle{every node}=%
            [%
              fill=green!50!black!20,%
              draw=green!50!black,%
              minimum size=8mm,%
              circle,%
              thick,%
              inner sep=0pt%
            ]
            
  \node (A)              {$A$};
  \node (B) [below of=A] {$B$};
  \node (C) [below of=B] {$C$};
  \node (D) [below of=C] {$D$};
  \node (E) [below of=D] {$E$};
  
  \begin{scope}[xshift=2.5cm]
    \node (1)              {$1$};
    \node (2) [below of=1] {$2$};
    \node (3) [below of=2] {$3$};
    \node (4) [below of=3] {$4$};
    \node (5) [below of=4] {$5$};
  \end{scope}
  
  \path [thick]    (A) edge (3)
                   (B) edge (2)
                   (C) edge (5)
                   (D) edge (1)
                   (E) edge (4);

\end{tikzpicture}
