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