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