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