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