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