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