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