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