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