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