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