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