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