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