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)(10,15)(14,16)(17,18,22,25,21,24,30,32)(19,26,28,29,27,23,31,20)(1,3)(2,6,8,14)(4,11)(5,10)(7,9,12,15)(13,16)(17,19)(18,23)(20,25)(21,27)(22,28)(24,26)(29,32)(30,31)(3,10)(6,14)(9,15)(11,16)(17,20,22,26,21,29,30,23)(18,19,25,28,24,27,32,31)(19,27)(20,29)(23,26)(28,31) 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.