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