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