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