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)(17,18,23,20)(19,27,30,46)(21,34,38,45)(22,33,36,26)(24,40,28,29)(25,42,32,37)(31,47,39,43)(35,44,48,41)(1,3,7,4)(2,8,9,16)(5,14,6,13)(10,15,11,12)(17,19,23,30)(18,24,20,28)(21,35,38,48)(22,39,36,31)(25,43,32,47)(26,44,33,41)(27,45,46,34)(29,42,40,37)(1,4,7,3)(2,8,9,16)(5,13,6,14)(10,15,11,12)(17,20,23,18)(19,28,30,24)(21,25,38,32)(22,33,36,26)(27,40,46,29)(31,44,39,41)(34,42,45,37)(35,43,48,47)(2,9)(8,16)(10,11)(12,15)(18,20)(24,28)(25,32)(26,33)(27,46)(34,45)(41,44)(43,47) 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.