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