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