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