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