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