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