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