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