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