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