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