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)(36,41)(37,39)(38,42)(43,46)(44,48)(45,47)(2,7)(3,11)(4,14)(13,15)(17,18)(19,25)(20,23)(21,24)(22,26)(27,31)(28,29)(30,32)(33,35,39,42)(34,40,37,38)(36,44,47,43)(41,48,45,46)(2,7)(4,14)(8,10)(12,16)(19,26)(22,25)(27,32)(30,31)(34,37)(35,42)(41,45)(43,44) 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)(33,36,39,47)(34,41,37,45)(35,43,42,44)(38,48,40,46)(1,4)(2,9)(3,12)(5,7)(6,14)(8,13)(10,15)(11,16)(17,19)(18,22)(20,27)(21,26)(23,30)(24,25)(28,31)(29,32)(33,37,39,34)(35,40,42,38)(36,45,47,41)(43,46,44,48)(1,5,6,9)(2,4,7,14)(3,13,11,15)(8,16,10,12)(17,20)(18,23)(19,27)(21,29)(22,30)(24,28)(25,31)(26,32)(33,38,39,40)(34,42,37,35)(36,46,47,48)(41,43,45,44)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.