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