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