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)(12,16)(14,15)(18,19)(20,24)(25,26,29,27)(28,31,32,30)(1,2)(3,7)(4,8)(5,6)(10,15)(11,12)(17,18,21,19)(20,22,24,23)(25,26,29,27)(28,30,32,31)(2,6)(4,7)(9,11,14,12)(10,13,15,16)(17,19,21,18)(20,22,24,23)(25,27,29,26)(28,31,32,30)(1,3,5,8)(2,7,6,4)(9,12,14,11)(10,13,15,16)(25,28,29,32)(26,30,27,31)(1,4,5,7)(2,8,6,3)(9,13)(10,11)(12,15)(14,16)(17,20)(18,22)(19,23)(21,24)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.