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