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