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