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