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