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