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)(11,14)(12,13)(15,16)(17,18,21,27,23,19,22,25)(20,24,29,28,31,26,30,32)(2,5)(6,8)(17,19,23,18)(20,28,31,32)(21,27,22,25)(24,30,26,29)(1,3,4,7)(2,6,5,8)(10,13)(14,16)(17,20,22,30,23,31,21,29)(18,24,25,32,19,26,27,28)(17,20,21,29,23,31,22,30)(18,24,27,28,19,26,25,32)(9,11,12,15)(10,14,13,16)(17,21,23,22)(18,25,19,27)(20,29,31,30)(24,32,26,28)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.