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