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