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