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