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