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