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