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