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)(19,29,34,46)(20,35,36,25)(21,26,38,45)(22,39,30,27)(24,40,43,33)(31,42,47,44)(32,41,37,48)(9,10)(11,14)(12,13)(15,16)(17,19,30,40,23,34,22,33)(18,24,39,46,28,43,27,29)(20,31,38,32,36,47,21,37)(25,41,45,42,35,48,26,44)(2,5)(6,8)(10,13)(11,15)(17,20,23,36)(18,25,28,35)(19,31,34,47)(21,30,38,22)(24,41,43,48)(26,39,45,27)(29,44,46,42)(32,33,37,40)(9,11,12,15)(10,14,13,16)(17,21)(18,26)(19,32)(20,30)(22,36)(23,38)(24,42)(25,39)(27,35)(28,45)(29,41)(31,33)(34,37)(40,47)(43,44)(46,48)(1,3,4,7)(2,6,5,8)(10,13)(14,16)(20,36)(21,38)(25,35)(26,45)(31,47)(32,37)(41,48)(42,44)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.