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