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