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)(7,13)(11,16)(12,15)(17,18,21,24)(19,28,30,45)(20,26,23,38)(22,35,34,46)(25,41,39,31)(27,33,40,37)(29,44,32,48)(36,43,47,42)(1,3,5,13,6,11,4,12)(2,7,8,10,9,15,14,16)(18,24)(25,39)(26,38)(27,40)(28,45)(35,46)(42,43)(44,48)(3,11)(7,15)(10,16)(12,13)(17,19,21,30)(18,25,24,39)(20,32,23,29)(22,36,34,47)(26,43,38,42)(27,44,40,48)(28,46,45,35)(31,33,41,37)(1,4,6,5)(2,8,9,14)(3,12,11,13)(7,10,15,16)(17,20,21,23)(18,26,24,38)(19,29,30,32)(22,33,34,37)(25,42,39,43)(27,35,40,46)(28,44,45,48)(31,47,41,36)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.