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