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