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