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