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