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