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