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