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