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