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