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