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