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