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