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