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