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