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