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)(19,24)(20,26)(21,25)(22,23)(27,31)(28,32)(29,30)(34,35)(36,43)(37,45)(46,47)(2,5)(6,8)(18,23)(19,26)(21,29)(28,31)(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)(17,19,22,26)(18,24,23,20)(21,27,29,32)(25,31,30,28)(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)(10,14)(11,15)(13,16)(17,20,22,24)(18,19,23,26)(21,28,29,31)(25,27,30,32)(33,36,38,43)(34,39,35,41)(37,44,45,48)(40,46,42,47)(17,21)(18,25)(19,27)(20,28)(22,29)(23,30)(24,31)(26,32)(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.