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