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