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