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