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