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