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