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