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