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