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