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