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