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