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