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