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