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