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