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