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