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