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