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