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