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