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