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