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