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