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