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