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