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