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