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