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