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