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