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