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