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