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