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