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