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