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