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