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