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