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