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)(19,25)(20,28)(21,23)(22,27)(24,30)(26,31)(29,32)(33,34)(35,40)(36,42)(37,43)(38,45)(39,41)(44,48)(46,47)(2,6)(4,12)(7,10)(11,15)(17,19,21,27)(18,22,23,25)(20,29,30,26)(24,32,28,31)(33,35,39,37)(34,40,41,43)(36,45,46,44)(38,47,48,42)(3,9)(7,10)(11,15)(14,16)(18,23)(22,25)(24,28)(31,32)(34,41)(35,37)(42,47)(44,45) involution — undirected(1,2)(3,10)(4,8)(5,6)(7,9)(11,16)(12,13)(14,15)(17,19)(18,22)(20,26)(21,27)(23,25)(24,31)(28,32)(29,30)(33,36)(34,42)(35,44)(37,45)(38,43)(39,46)(40,48)(41,47) involution — undirected(1,3,5,9)(2,7,6,10)(4,11,12,15)(8,14,13,16)(17,18)(19,22)(20,24)(21,23)(25,27)(26,31)(28,30)(29,32)(33,37,39,35)(34,43,41,40)(36,45,46,44)(38,47,48,42)(1,4,5,12)(2,8,6,13)(3,11,9,15)(7,14,10,16)(17,20,21,30)(18,24,23,28)(19,26,27,29)(22,31,25,32)(33,38)(34,44)(35,42)(36,43)(37,47)(39,48)(40,46)(41,45)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.