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