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