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