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