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