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