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