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