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