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)(17,18,22,20)(19,25,28,32)(21,29,30,24)(23,31,26,27)(1,3)(2,6)(4,7)(5,8)(9,10)(11,15)(12,14)(13,16)(17,18,22,20)(19,26,28,23)(21,24,30,29)(25,27,32,31)(9,11)(10,13)(12,16)(14,15)(17,19,21,27,22,28,30,31)(18,23,24,25,20,26,29,32)(1,2,5,4)(3,7,8,6)(11,16)(13,15)(17,20,22,18)(19,26,28,23)(21,29,30,24)(25,27,32,31)(1,4,5,2)(3,7,8,6)(10,14)(13,15)(18,20)(23,26)(24,29)(25,32)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.