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