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