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