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