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