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