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