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