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