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