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)(17,18)(19,25)(20,23)(21,28)(22,27)(24,26)(29,32)(30,31)(1,3)(2,6)(4,7)(5,8)(9,11)(10,12)(13,15)(14,16)(17,19,26,31,23,29,22,28)(18,21,27,32,20,30,24,25)(1,4,5,2)(3,7,8,6)(10,15)(11,16)(17,20,23,18)(19,21,29,30)(22,27,26,24)(25,31,32,28)(3,8)(6,7)(9,12,14,13)(10,11,15,16)(18,20)(21,30)(24,27)(25,32)(9,13,14,12)(10,11,15,16)(17,21,26,32,23,30,22,25)(18,19,27,31,20,29,24,28)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.