One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,5,8)(3,9,10,16)(4,12,13,7)(6,14,15,11)(18,23)(19,28)(20,29)(21,32)(24,31)(25,40)(26,43)(27,37)(30,39)(33,46)(34,35)(36,41)(38,47)(42,48)(44,45)(1,3,4,11,5,10,13,14)(2,6,7,9,8,15,12,16)(3,10)(6,15)(9,16)(11,14)(17,18,24,38,20,25,30,36,32,41,45,40,46,47,19,23,22,27,28,35,33,42,44,43,21,26,39,48,29,34,31,37)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.