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)(11,16)(12,13)(14,15)(18,21)(19,24)(25,26,29,30)(27,31,32,28)(2,4)(6,8)(10,15)(13,16)(17,18,20,21)(19,22,24,23)(27,32)(28,31)(9,11,14,12)(10,16,15,13)(17,19)(18,22)(20,24)(21,23)(25,27)(26,28)(29,32)(30,31)(1,3,5,7)(2,6,4,8)(9,12,14,11)(10,16,15,13)(17,19)(18,23)(20,24)(21,22)(25,28)(26,27)(29,31)(30,32)(1,4,5,2)(3,6,7,8)(9,13,14,16)(10,12,15,11)(17,18)(19,22)(20,21)(23,24)(25,26)(27,28)(29,30)(31,32)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.