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