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)(17,18,22,23)(19,27,28,24)(20,25,29,32)(21,30,31,26)(33,34,39,43)(35,40,37,42)(36,46,38,41)(44,48,45,47)(1,3,6,4)(2,7,9,10)(5,11,13,12)(8,14,16,15)(18,23)(20,29)(24,27)(26,30)(33,35,39,37)(34,40,43,42)(36,45,38,44)(41,48,46,47)(17,19,22,28)(18,24,23,27)(20,26,29,30)(21,25,31,32)(33,36,39,38)(34,41,43,46)(35,44,37,45)(40,47,42,48)(1,2)(3,7)(4,10)(5,8)(6,9)(11,14)(12,15)(13,16)(17,19)(18,24)(20,30)(21,25)(22,28)(23,27)(26,29)(31,32)(33,37,39,35)(34,42,43,40)(36,44,38,45)(41,47,46,48)(1,4,6,3)(2,7,9,10)(5,11,13,12)(8,15,16,14)(17,20)(18,25)(19,26)(21,27)(22,29)(23,32)(24,31)(28,30)(33,38,39,36)(34,41,43,46)(35,45,37,44)(40,47,42,48)(1,5)(2,8)(3,11)(4,12)(6,13)(7,14)(9,16)(10,15)(17,21,22,31)(18,26,23,30)(19,25,28,32)(20,24,29,27)(33,34)(35,40)(36,41)(37,42)(38,46)(39,43)(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.