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