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