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