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)(19,23)(20,24)(21,26)(22,25)(27,36)(28,43)(29,37)(30,38)(31,39)(32,40)(33,41)(34,44)(35,42)(45,47)(46,48)(9,10)(11,14)(12,16)(13,15)(17,19,22,30)(18,23,25,38)(20,31,32,46)(21,28,35,29)(24,39,40,48)(26,43,42,37)(27,34,45,33)(36,44,47,41)(2,5)(6,8)(9,11,13,12)(10,14,15,16)(17,20)(18,24)(19,27)(21,34)(22,32)(23,36)(25,40)(26,44)(28,31)(29,46)(30,45)(33,35)(37,48)(38,47)(39,43)(41,42)(9,11,13,12)(10,14,15,16)(20,32)(24,40)(27,45)(31,46)(33,34)(36,47)(39,48)(41,44)(1,3,4,7)(2,6,5,8)(9,12,13,11)(10,14,15,16)(18,25)(19,28)(21,35)(23,37)(24,40)(27,31)(29,30)(33,34)(36,48)(38,43)(39,47)(45,46)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.