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