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