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