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