One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,4,6)(3,5,8,7)(9,10)(11,14)(12,15)(13,16)(17,18)(19,21)(20,23)(22,24)(25,26,29,30)(27,28,32,31)(1,2)(3,7)(4,6)(5,8)(9,11,12,16)(10,13,15,14)(17,18,20,23)(19,22,24,21)(26,30)(27,32)(17,19)(18,21)(20,24)(22,23)(25,27)(26,31)(28,30)(29,32) involution — undirected(1,2)(3,7)(4,6)(5,8)(9,10)(11,13)(12,15)(14,16)(17,19)(18,22)(20,24)(21,23)(25,28,29,31)(26,27,30,32)(1,3)(2,5)(4,8)(6,7)(9,11)(10,14)(12,16)(13,15)(17,18)(19,21)(20,23)(22,24)(25,27)(26,28)(29,32)(30,31) involution — undirectedA Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.