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