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