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