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