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