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