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