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