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