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