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