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