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