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