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