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