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