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