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)(19,25,30,39,20,24,32,37)(21,26,33,41,34,40,45,48)(29,38,43,47,31,36,44,46)(1,3)(2,7)(4,11)(5,14)(6,12)(8,15)(9,16)(10,13)(17,19,23,20)(18,24,27,25)(21,31,34,29)(22,30,35,32)(26,38,40,36)(28,39,42,37)(33,44,45,43)(41,46,48,47)(1,4,6,5)(2,8,9,13)(3,11,12,14)(7,15,16,10)(17,20,23,19)(18,25,27,24)(21,29,34,31)(22,30,35,32)(26,36,40,38)(28,37,42,39)(33,44,45,43)(41,47,48,46)(17,21,23,34)(18,26,27,40)(19,29,20,31)(22,33,35,45)(24,36,25,38)(28,41,42,48)(30,43,32,44)(37,46,39,47)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.