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