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