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