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