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