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