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