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