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