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