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