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