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