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