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