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