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