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