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)(14,15)(19,25)(20,27)(23,28)(24,29)(33,34)(35,38)(36,39)(37,42)(40,45)(41,43)(44,47)(46,48)(9,10,13,12)(11,15,16,14)(18,22)(23,28)(24,29)(30,32)(34,35)(36,43)(37,45)(46,47)(10,12)(11,16)(17,18)(19,23)(20,24)(21,22)(25,28)(26,30)(27,29)(31,32)(33,35,38,34)(36,41,43,39)(37,40,45,42)(44,46,48,47)(1,2)(3,5)(4,6)(7,8)(9,11,13,16)(10,14,12,15)(17,19,21,25)(18,23,22,28)(20,26,27,31)(24,30,29,32)(33,36,38,43)(34,39,35,41)(37,44,45,48)(40,46,42,47)(1,3,4,7)(2,5,6,8)(9,12,13,10)(11,15,16,14)(17,20)(18,24)(19,26)(21,27)(22,29)(23,30)(25,31)(28,32)(33,37)(34,40)(35,42)(36,44)(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.