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