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