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