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