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