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