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