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