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