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