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