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