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