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