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