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