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