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