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