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