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