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