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