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