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