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