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