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