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