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