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