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