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