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)(17,18,23,25)(19,26,20,21)(22,24,31,32)(27,30,28,29)(33,34,39,41)(35,38,36,40)(37,42,46,48)(43,45,44,47)(3,9)(7,13)(10,15)(14,16)(17,19,23,20)(18,21,25,26)(22,27,31,28)(24,29,32,30)(33,35,39,36)(34,40,41,38)(37,44,46,43)(42,45,48,47)(2,6)(7,13)(8,11)(14,16)(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)(17,20,23,19)(18,21,25,26)(22,28,31,27)(24,29,32,30)(33,36,39,35)(34,38,41,40)(37,44,46,43)(42,45,48,47)(1,3)(2,7)(4,10)(5,9)(6,13)(8,14)(11,16)(12,15)(17,21)(18,19)(20,25)(22,30)(23,26)(24,28)(27,32)(29,31)(33,37)(34,42)(35,43)(36,44)(38,45)(39,46)(40,47)(41,48) involution — undirected(1,4)(2,8)(3,10)(5,12)(6,11)(7,14)(9,15)(13,16)(17,22)(18,24)(19,27)(20,28)(21,29)(23,31)(25,32)(26,30)(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.