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