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