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