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