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