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