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