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