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