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