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