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