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