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