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