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