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