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