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