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