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