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