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