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