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)(17,18,22,27,23,28,36,42,21,25,37,43,35,44,20,26)(19,29,32,39,33,45,30,46,31,47,34,24,38,40,48,41)(2,7,10,9)(3,12)(8,11,16,15)(13,14)(17,19,23,38,21,31,35,33)(18,24,28,46,25,39,44,41)(20,34,22,30,36,32,37,48)(26,45,27,29,42,40,43,47)(1,3,4,13,6,12,5,14)(2,8,9,11,10,16,7,15)(18,25)(24,39)(26,42)(27,43)(28,44)(29,47)(40,45)(41,46)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.