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