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