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