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