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