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