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