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