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