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