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