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