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