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