PayleyGraph(3, 2, y^2+1).mws

>    with(GraphTheory):with(SpecialGraphs):

>    P := PayleyGraph(3, 2, y^2+1);

P := `Graph 4: an undirected unweighted graph with 9 vertices and 18 edge(s)`

>    DrawGraph(P);

[Maple Plot]

>