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