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