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