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