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