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