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