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