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