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