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