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