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