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