\begin{mgraphbox}[width=\linewidth] 
  \begin{figure}[H]
    \begin{center}
      \begin{tikzpicture}
      
        \begin{scope}[every node/.style={shape=circle, fill=white, draw, inner sep=2pt}]
          %NODES1
        \end{scope}
      
        \begin{scope}[every draw/.style={}]
          %EDGES1
        \end{scope}
      
      \end{tikzpicture}
    \end{center}
  \end{figure}
\end{mgraphbox}

Minimal spanning tree:

\begin{mgraphbox}[width=\linewidth] 
  \begin{figure}[H]
    \begin{center}
      \begin{tikzpicture}
      
        \begin{scope}[every node/.style={shape=circle, fill=white, draw, inner sep=2pt}]
          %NODES2
        \end{scope}
      
        \begin{scope}[every draw/.style={}]
          %EDGES2
        \end{scope}
      
      \end{tikzpicture}
    \end{center}
  \end{figure}
\end{mgraphbox}