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