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