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