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