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