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