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