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