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