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