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