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