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