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