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