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