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