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