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