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