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