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