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