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