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