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