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