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