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