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