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