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