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