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