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