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