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