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