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