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