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