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)(19,25)(20,35)(21,27)(22,28)(23,29)(24,30)(26,37)(31,47)(32,42)(33,43)(34,44)(36,46)(38,45)(39,41)(40,48)(9,11,12,16)(10,13,14,15)(17,19)(18,25)(20,22)(21,32)(23,34)(24,40)(26,45)(27,42)(28,35)(29,44)(30,48)(31,36)(33,39)(37,38)(41,43)(46,47)(2,5)(6,8)(10,14)(11,16)(17,20,24,36,23,37,21,33)(18,26,30,43,29,35,27,46)(19,31,32,22,34,39,40,38)(25,41,42,45,44,47,48,28)(10,14)(13,15)(17,21,23,24)(18,27,29,30)(19,32,34,40)(20,36,37,33)(22,31,38,39)(25,42,44,48)(26,43,35,46)(28,47,45,41)(1,3,4,7)(2,6,5,8)(17,22,21,31,23,38,24,39)(18,28,27,47,29,45,30,41)(19,33,40,37,34,36,32,20)(25,43,48,26,44,46,42,35)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.