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