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