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