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