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