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