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