One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,5,3)(4,7,8,6)(9,10)(11,16)(12,14)(13,15)(17,18,23,24)(19,22,21,30)(20,25,27,31)(26,29,28,32)(9,11,13,12)(10,14,15,16)(17,19)(18,22)(20,26)(21,23)(24,30)(25,29)(27,28)(31,32)(2,3)(6,7)(10,15)(14,16)(18,24)(19,21)(20,27)(29,32) involution — undirected(1,3,5,2)(4,7,8,6)(9,10)(11,14)(12,16)(13,15)(17,20,23,27)(18,25,24,31)(19,26,21,28)(22,29,30,32)(1,4,5,8)(2,6,3,7)(9,12,13,11)(10,16,15,14)(17,21,23,19)(18,22,24,30)(20,28,27,26)(25,29,31,32)(17,22)(18,19)(20,29)(21,24)(23,30)(25,26)(27,32)(28,31) 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.