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