Commuting Involution Graphs for Certain Exceptional Groups of Lie Type

Abstract Suppose that G is a finite group and X -conjugacy classes of involutions. The commuting involution graph $${\mathcal {C}}(G,X)$$ C ( G , X ) the whose vertex set with $$x, y \in X$$ x y ∈ being joined if $$x \ne y$$ ≠ $$xy = yx$$ = . Here for various exceptional Lie type groups characteristic two we investigate their graphs.