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