\documentclass{article} 
\usepackage{tikz,amsmath}
%\usepackage{xepersian} 

\begin{document}

%\begin{tikzpicture}
%\draw[rotate=90] (7,7) ellipse (1.5cm and 4cm)node[above,yshift=15mm,xshift=-3mm]{$\bar{1}$};
%\end{tikzpicture}
\begin{tikzpicture}
\fill[] (8,8)  circle (1mm) node[above]{$u_6$} ;
\fill[] (6.5,8)  circle (1mm) node[above]{$u_5$};
\fill[] (5,8)  circle (1mm) node[above]{$u_1$};
\fill[] (3.5,8)  circle (1mm) node[above]{$u_4$};
 \fill[] (9,5.5)  circle (1mm) node[below]{$u_3$} ;
\fill[] (2,5.5)  circle (1mm) node[below]{$u_2$};
\draw (2,5.5)--(3.5,8);
\draw (2,5.5)--(6.5,8);
\draw (2,5.5)--(5,8);
\draw (2,5.5)--(9,5.5);
\draw (9,5.5)--(8,8);
\draw (9,5.5)--(5,8);
\draw[rotate=90] (6,5) ellipse (1.5cm and 4cm)node[above,yshift=15mm,xshift=-3mm]{$\bar{1}$};
\end{tikzpicture}



\end{document}