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