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