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