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