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