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