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