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