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