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