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