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