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