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