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