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