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