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